* {
  padding: 0;
  margin: 0;
}

html,body {
  height: 100%;
}

body {
  background-color: black;
}

.main-container {
  text-align: center;
  padding-top: 200px;
}

.main-container .item {
  display: inline-block;
  width: 70px;
  vertical-align: top;
  margin-left: 20px;
}

.main-container .item i {
  display: block;
  color: rgb(55, 55, 55);
  font-size: 30px;
  text-align: center;
  margin-top: 10px;
  transition: .5s;
}

input[type='checkbox'] {
  display: block;
  width: 0;
  height: 70px;
  position: relative;
}

input[type='checkbox']::before {
  content: '';
  display: block;
  width: 10px;
  height: 10px;
  background-color: rgb(25, 25, 25);
  border: 20px solid rgb(45, 45, 45);
  border-radius: 30px;
  position: absolute;
  z-index: 2;
  left: 10px;
  top: 10px;
  box-shadow: 0 0 10px 0 rgb(15, 15, 15);
  transition: .5s;
}

input[type='checkbox']::after {
  content: '';
  width: 70px;
  height: 70px;
  background-color: rgb(55, 55, 55);
  display: block;
  position: absolute;
  z-index: 1;
  border-radius: 40px;
  box-shadow: 0 8px 10px 0 rgba(15, 15, 15, 0.411) inset;
}
input[type='checkbox']:checked::before {
  background-color: rgb(0, 183, 255);
  box-shadow: 0 0 10px 0 rgb(0, 183, 255);
}

input[type='checkbox']:checked+i {
  color: rgb(0, 183, 255);
  text-shadow: 0 0 10px rgb(0, 183, 255);
}